The most charitable spin I can put on it is that there probably aren't that many scratch handicap 60 year old women using Arccos so the dataset is possibly too small to be meaningful but I'd say the figures are way too low at every age point shown.
Can't comment on the men's but I expect they'll have a significantly bigger dataset. Any scratch guys on here or who someone plays with a lot of scratch men - how realistic do those numbers look?
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